Last year, the Pew Research Center’s Hispanic Trends Project reported that net migration from Mexico to the United States “has stopped and may have reversed.” Mexicans can only hope that this trend included the highly skilled workers and researchers who have been moving to the United States in droves in recent years. Alas, that is unlikely.Amid all the controversy in the United States over illegal immigration by low-skilled workers, few Americans recognize how significantly the influx of Mexican talent has benefited the United States—and how much it has hurt Mexico. The number of college-educated Mexicans living in the United States rose from some 300,000 in 2000 to 530,000 in 2010. This is a grievous loss in a country where the average citizen has only a little more than eight years of schooling. According to education researcher Alma Maldonado, Mexico has only 30,000 citizens with a PhD, and 11,000 of them live in the United States.